Steve, On Mon, Mar 2, 2020 at 10:12 PM Steve French <smfrench@xxxxxxxxx> wrote: > > Can you try an experiment with Ubuntu's newer kernel: > > https://wiki.ubuntu.com/Kernel/MainlineBuilds > Or > > https://github.com/pimlie/ubuntu-mainline-kernel.sh I picked latest Debian bullseye installer. Here is what I have: $ uname -rvo 5.4.0-4-amd64 #1 SMP Debian 5.4.19-1 (2020-02-13) GNU/Linux I am observing the same behavior with regard to 'nodfs' option. I am required to use this option to get the first mount working. $ mount [...] //mydoma01.acme.corp/network on /tmp/z type cifs (rw,relatime,vers=default,cache=strict,username=mmalaterre,domain=MY,uid=0,noforceuid,gid=0,noforcegid,addr=1.2.3.4,file_mode=0755,dir_mode=0755,soft,nounix,nodfs,mapposix,rsize=4194304,wsize=4194304,bsize=1048576,echo_interval=60,actimeo=1) For some reason I am getting vers=1.0 behavior (described previously): $ cd /tmp/z $ cd folder2 $ ls subfolder2 $ cd subfolder2/ bash: cd: subfolder2/: Object is remote Ref: $ apt-cache policy cifs-utils cifs-utils: Installed: 2:6.9-1 Candidate: 2:6.9-1 Version table: *** 2:6.9-1 500 500 http://deb.debian.org/debian bullseye/main amd64 Packages 100 /var/lib/dpkg/status